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Stock-based Activity (Details Narrative) - USD ($)
3 Months Ended 12 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Dec. 31, 2015
Dec. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Unrecognized stock-based compensation expense, options $ 3,968,849   $ 384,326,400  
Unrecognized stock-based compensation expense, recognition period 2 years 2 months 27 days   2 years 3 months 7 days  
Weighted average remaining Contractual term, stock options outstanding 9 years 2 months 9 days 7 years 8 months 12 days 9 years 1 month 17 days 7 years 10 months 24 days
Options Granted 1,346,000   3,015,850 90,876
Weighted average exercise price $ 0.76   $ 2.23 $ 8.47
Volatility minimum 81.98%      
Volatility maximum 83.75%      
Dividend rate 0.00%   0.00% 0.00%
Expected term 6 years      
Risk-free interest rate, minimum 1.23%      
Risk-free interest rate, maximum 1.43%      
Restricted Stock [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Unrecognized stock-based compensation expense, options $ 3,415,151      
Restricted Stock [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Unrecognized stock-based compensation expense, recognition period 2 years 7 days